Home / 7,215.85-10,824.90-2,285.02

Finding the Fourth Proportional to 7,215.85, 10,824.90 and 2,285.02

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Solution

The fourth proportional to 7,215.85, 10,824.90 and 2,285.02 is: 3,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.85 : 10,824.90 = 2,285.02 : x
  2. Step 2: Convert to fraction form
    7,215.85/10,824.90 = 2,285.02/x
  3. Step 3: Cross multiply
    7,215.85x = 10,824.90 × 2,285.02
  4. Step 4: Simplify right side
    7,215.85x = 24,735,113.00
  5. Step 5: Solve for x
    x = 24,735,113.00/7,215.85
  6. Step 6: Final answer
    x = 3,427.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.